Originally Posted by Designflaw
You should never haul a bike on its kickstand. There are multiple reasons, a couple of the easy ones: 1. The suspension of the bike is now locked, the jamming against bumps has cracked frames. 2. you are pulling the weight of the bike down on 2 sq. in. as well as at an angle all of which stresses the straps. Beds dent, I've seen wood floors give out, kick stands break and the right hand straps give way etc...
I've been riding ~25+ years and agree 100%.
Sidestands are typically cast pieces designed to hold a small fraction of the bikes weight. Think about how much of the bikes weight you "lift" when you tip the bike upright off the sidestand.
They are not engineered to handle any type of dynamic loads whatsoever. Properly cinching down on the straps on an improperly loaded (sitting on sidestand) bike adds tremendous loads to the stand.
I've seen people strap bikes down on the centre stand as well - essentially just as bad. Where the sidestand was taking ~1/3 of the load (shared with both tires) the centre stand is being asked to take most of the weight of the bike.
With either stand scenario, you're also defeating any benefits from the bikes suspension.